http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
적응 롤 안정성 제어를 위한 차량 질량 추정 알고리즘 개발
임성현(Sunghyun Lim),정종철(Jongchul Jung),홍대건(Daegun Hong),한상오(Sangoh Han),허건수(Kunsoo Huh),조희명(Heeyoung Cho),윤재민 한국자동차공학회 2006 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
Rollover is one of the significant life threatening factors in SUVs(Sports Utility Vehicles). By applying braking or steering, active roll stability controllers help prevent rollover accidents in SUVs. The performance of these controllers is very sensitive to vehicle inertial parameters such as vehicle mass and mass center height. In this paper, a unified estimation method for vehicle mass is proposed considering available driving conditions. Three estimation algorithms are developed based on longitudinal, lateral or vertical vehicle dynamics, respectively, and are unified. The first algorithm is designed using the longitudinal vehicle dynamics and the recursive least square with the disturbance observer technique is applied for longitudinal traveling case. The second algorithm is designed using the lateral vehicle dynamics, where the longitudinal and lateral velocities are also estimated via Kalman filter. The third algorithm is designed using the vertical vehicle dynamics and the dual recursive least square for estimating vehicle sprung mass. Then three algorithms are integrated to extract the vehicle mass during arbitrary vehicle maneuvering. The performance of the proposed vehicle mass estimation method is demonstrated through simulations.
유럽과 북미 측면 충돌 시험 모드에 따른 차체 구조 대응 방안 고찰
임성현(Sunghyun Lim),이광원(Kwangwon Lee),김동석(Dongsuk Kim) 한국자동차공학회 2003 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
The side impact analyses based on both ECE R95 and FMVSS214 were conducted to reduce chest injury value of occupant using LS-DYNA. The analysis vehicle model was correlated with test results. Three design recommendations were made based on the deformation mode and energy distribution. The enhanced results were<br/> produced by three case studies. Main design factors for enhancing the performance are side parts that contact with the Moving Deformable Barrier. In this study, by reinforcement of rocker part and center pillar, optimal design solutions were obtained.
안대진(Daejin An),임성현(Sunghyun Lim),김영준(Youngjun Kim) 한국자동차공학회 2010 한국자동차공학회 부문종합 학술대회 Vol.2010 No.5
The pedal operation in automobile is one of the most fundamental and important tasks while driving. A physiological workload can be increased by repetitive actions such as pedal operations. In this paper, we focus on reducing the physiological workload of pedal operations on movements between an accelerator pedal and a brake pedal by measuring Tibialis Anterior(TA), Gastrocemius(GCM), Biceps Femoris(BF), Rectus Femoris(RF) using electromyography(EMG).. We specially investigate on the following three factors for pedal layouts: 1) The angle of the brake, 2) The height of the pedal, 3) The gap between the accelerator pedal and the brake pedal. In conclusion, pedal operations could cause a fatigue of TA, which is closely related to an ankle angle. In order to reduce the ankle angle, the gap between the accelerator pedal and the brake pedal is a critical parameter.